From 8f640ecb33103223bf4aeae351e8d2fc252ea763 Mon Sep 17 00:00:00 2001 From: serso Date: Thu, 14 Apr 2016 00:30:55 +0200 Subject: [PATCH] Initial commit --- .../converter/ConverterFragment.java | 174 +++++++++++++----- 1 file changed, 123 insertions(+), 51 deletions(-) diff --git a/app/src/main/java/org/solovyev/android/calculator/converter/ConverterFragment.java b/app/src/main/java/org/solovyev/android/calculator/converter/ConverterFragment.java index 39ea38b2..2c1126fb 100644 --- a/app/src/main/java/org/solovyev/android/calculator/converter/ConverterFragment.java +++ b/app/src/main/java/org/solovyev/android/calculator/converter/ConverterFragment.java @@ -27,6 +27,7 @@ import org.solovyev.android.calculator.*; import javax.annotation.Nonnull; import javax.inject.Inject; +import javax.measure.converter.UnitConverter; import javax.measure.unit.NonSI; import javax.measure.unit.SI; import javax.measure.unit.Unit; @@ -39,7 +40,7 @@ public class ConverterFragment extends BaseDialogFragment @NonNull private static final Set excludedUnits = new HashSet<>(Arrays.asList("year_sidereal", "year_calendar", "day_sidereal", "foot_survey_us", "me", "u")); @NonNull - private static final Map>> units = new HashMap<>(); + private static final Map> units = new HashMap<>(); private static final String STATE_SELECTION_FROM = "selection.from"; private static final String STATE_SELECTION_TO = "selection.to"; private static final String EXTRA_VALUE = "value"; @@ -75,8 +76,8 @@ public class ConverterFragment extends BaseDialogFragment @Bind(R.id.converter_swap_button) ImageButton swapButton; private ArrayAdapter> dimensionsAdapter; - private ArrayAdapter> adapterFrom; - private ArrayAdapter> adapterTo; + private ArrayAdapter> adapterFrom; + private ArrayAdapter> adapterTo; private int pendingFromSelection = View.NO_ID; private int pendingToSelection = View.NO_ID; @@ -91,12 +92,12 @@ public class ConverterFragment extends BaseDialogFragment return; } - List> unitsInDimension = units.get(dimension); + List unitsInDimension = units.get(dimension); if (unitsInDimension == null) { unitsInDimension = new ArrayList<>(); units.put(dimension, unitsInDimension); } - unitsInDimension.add(unit); + unitsInDimension.add(MeasureUnit.create(unit)); } public static void show(@Nonnull FragmentActivity activity) { @@ -116,6 +117,11 @@ public class ConverterFragment extends BaseDialogFragment return new ArrayAdapter<>(context, R.layout.support_simple_spinner_dropdown_item); } + @Nonnull + private static NamedItem createNamedItem(@NonNull T item, @StringRes int name, @NonNull Context context) { + return new NamedItem<>(item, name == 0 ? item.toString() : context.getString(name)); + } + @Override protected void onPrepareDialog(@NonNull AlertDialog.Builder builder) { builder.setPositiveButton(R.string.c_use, null); @@ -197,7 +203,7 @@ public class ConverterFragment extends BaseDialogFragment } } - private void onUnitFromChanged(@NonNull Unit unit) { + private void onUnitFromChanged(@NonNull MyUnit unit) { final int dimensionPosition = dimensionsSpinner.getSelectedItemPosition(); updateUnitsTo(dimensionsAdapter.getItem(dimensionPosition).item, unit); convert(); @@ -212,8 +218,8 @@ public class ConverterFragment extends BaseDialogFragment private void updateUnitsFrom(@NonNull NamedDimension dimension) { adapterFrom.setNotifyOnChange(false); adapterFrom.clear(); - for (Unit unit : units.get(dimension)) { - adapterFrom.add(named(unit)); + for (MyUnit unit : units.get(dimension)) { + adapterFrom.add(unit.named(getActivity())); } adapterFrom.sort(COMPARATOR); adapterFrom.setNotifyOnChange(true); @@ -222,8 +228,8 @@ public class ConverterFragment extends BaseDialogFragment pendingFromSelection = View.NO_ID; } - private void updateUnitsTo(@NonNull NamedDimension dimension, @NonNull Unit except) { - final Unit selectedUnit; + private void updateUnitsTo(@NonNull NamedDimension dimension, @NonNull MyUnit except) { + final MyUnit selectedUnit; if (pendingToSelection > View.NO_ID) { selectedUnit = null; } else { @@ -232,9 +238,9 @@ public class ConverterFragment extends BaseDialogFragment } adapterTo.setNotifyOnChange(false); adapterTo.clear(); - for (Unit unit : units.get(dimension)) { + for (MyUnit unit : units.get(dimension)) { if (!except.equals(unit)) { - adapterTo.add(named(unit)); + adapterTo.add(unit.named(getActivity())); } } adapterTo.sort(COMPARATOR); @@ -242,7 +248,7 @@ public class ConverterFragment extends BaseDialogFragment adapterTo.notifyDataSetChanged(); if (selectedUnit != null && !except.equals(selectedUnit)) { for (int i = 0; i < adapterTo.getCount(); i++) { - final Unit unit = adapterTo.getItem(i).item; + final MyUnit unit = adapterTo.getItem(i).item; if (unit.equals(selectedUnit)) { spinnerTo.setSelection(i); return; @@ -253,15 +259,6 @@ public class ConverterFragment extends BaseDialogFragment pendingToSelection = View.NO_ID; } - @Nonnull - private NamedItem named(@Nonnull Unit unit) { - final NamedDimension dimension = NamedDimension.of(unit); - if (dimension == null) { - return createNamedItem(unit, 0); - } - return createNamedItem(unit, Converter.unitName(unit, dimension)); - } - @Override public void onNothingSelected(AdapterView parent) { } @@ -293,11 +290,11 @@ public class ConverterFragment extends BaseDialogFragment } try { - final Double fromValue = parseDouble(value); - final Unit from = adapterFrom.getItem(spinnerFrom.getSelectedItemPosition()).item; - final Unit to = adapterTo.getItem(spinnerTo.getSelectedItemPosition()).item; - final double toValue = from.getConverterTo(to).convert(fromValue); - editTextTo.setText(formatDouble(toValue)); + final MyUnit from = adapterFrom.getItem(spinnerFrom.getSelectedItemPosition()).item; + final Object fromValue = from.parse(value); + final MyUnit to = adapterTo.getItem(spinnerTo.getSelectedItemPosition()).item; + final Object toValue = from.getConverterTo(to).convert(fromValue); + editTextTo.setText(to.format(toValue)); clearError(labelFrom); } catch (RuntimeException e) { if (validate) { @@ -306,20 +303,6 @@ public class ConverterFragment extends BaseDialogFragment } } - private double parseDouble(@Nonnull String value) { - final String groupingSeparator = String.valueOf(JsclMathEngine.getInstance().getGroupingSeparator()); - if (!TextUtils.isEmpty(groupingSeparator)) { - value = value.replace(groupingSeparator, ""); - } - final long bits = new Real(value).toDoubleBits(); - return Double.longBitsToDouble(bits); - } - - @Nonnull - private String formatDouble(double toValue) { - return JsclMathEngine.getInstance().format(toValue, NumeralBase.dec); - } - @Override public boolean onEditorAction(TextView v, int actionId, KeyEvent event) { switch (v.getId()) { @@ -354,14 +337,13 @@ public class ConverterFragment extends BaseDialogFragment } final String text = editTextTo.getText().toString(); try { - final double value = parseDouble(text); switch (which) { case DialogInterface.BUTTON_POSITIVE: - editor.insert(String.valueOf(value)); + editor.insert(text); dismiss(); break; case DialogInterface.BUTTON_NEUTRAL: - clipboard.setText(String.valueOf(value)); + clipboard.setText(text); Toast.makeText(getActivity(), getString(R.string.c_result_copied), Toast.LENGTH_SHORT).show(); break; @@ -372,13 +354,13 @@ public class ConverterFragment extends BaseDialogFragment private void swap() { editTextFrom.setText(editTextTo.getText()); - final Unit oldFromUnit = adapterFrom.getItem(spinnerFrom.getSelectedItemPosition()).item; - final Unit oldToUnit = adapterTo.getItem(spinnerTo.getSelectedItemPosition()).item; + final MyUnit oldFromUnit = adapterFrom.getItem(spinnerFrom.getSelectedItemPosition()).item; + final MyUnit oldToUnit = adapterTo.getItem(spinnerTo.getSelectedItemPosition()).item; pendingToSelection = -1; for (int i = 0; i < adapterFrom.getCount(); i++) { pendingToSelection++; - final Unit unit = adapterFrom.getItem(i).item; + final MyUnit unit = adapterFrom.getItem(i).item; if (unit.equals(oldToUnit)) { pendingToSelection--; } else if (unit.equals(oldFromUnit)) { @@ -387,7 +369,7 @@ public class ConverterFragment extends BaseDialogFragment } for (int i = 0; i < adapterFrom.getCount(); i++) { - final Unit unit = adapterFrom.getItem(i).item; + final MyUnit unit = adapterFrom.getItem(i).item; if (unit.equals(oldToUnit)) { spinnerFrom.setSelection(i); break; @@ -418,7 +400,25 @@ public class ConverterFragment extends BaseDialogFragment @Nonnull private NamedItem createNamedItem(@NonNull T item, @StringRes int name) { - return new NamedItem<>(item, name == 0 ? item.toString() : getString(name)); + return createNamedItem(item, name, getActivity()); + } + + private interface MyUnit { + @NonNull + Object parse(@NonNull String value); + + @NonNull + String format(@NonNull Object value); + + @NonNull + MyConverter getConverterTo(@NonNull MyUnit to); + + @NonNull + NamedItem named(@NonNull Context context); + } + + private interface MyConverter { + Object convert(Object value); } private static class NamedItem { @@ -438,10 +438,82 @@ public class ConverterFragment extends BaseDialogFragment } } - private static class NamedItemComparator implements Comparator> { + private static class NamedItemComparator implements Comparator> { @Override - public int compare(NamedItem lhs, NamedItem rhs) { + public int compare(NamedItem lhs, NamedItem rhs) { return lhs.toString().compareTo(rhs.toString()); } } + + private static final class MeasureUnit implements MyUnit { + @NonNull + final Unit unit; + + private MeasureUnit(@NonNull Unit unit) { + this.unit = unit; + } + + private static MeasureUnit create(@NonNull Unit unit) { + return new MeasureUnit(unit); + } + + @Override + public String toString() { + return unit.toString(); + } + + @NonNull + @Override + public Object parse(@NonNull String value) { + final String groupingSeparator = String.valueOf(JsclMathEngine.getInstance().getGroupingSeparator()); + if (!TextUtils.isEmpty(groupingSeparator)) { + value = value.replace(groupingSeparator, ""); + } + final long bits = new Real(value).toDoubleBits(); + return Double.longBitsToDouble(bits); + } + + @NonNull + @Override + public String format(@NonNull Object value) { + return JsclMathEngine.getInstance().format((Double) value, NumeralBase.dec); + } + + @NonNull + @Override + public MyConverter getConverterTo(@NonNull final MyUnit to) { + return new MyConverter() { + @Override + public Object convert(Object value) { + final UnitConverter converter = unit.getConverterTo(((MeasureUnit) to).unit); + return converter.convert((Double) value); + } + }; + } + + @NonNull + @Override + public NamedItem named(@Nonnull Context context) { + final NamedDimension dimension = NamedDimension.of(unit); + if (dimension == null) { + return createNamedItem((MyUnit) MeasureUnit.create(unit), 0, context); + } + return createNamedItem((MyUnit) MeasureUnit.create(unit), Converter.unitName(unit, dimension), context); + } + + @Override + public boolean equals(Object o) { + if (this == o) return true; + if (o == null || getClass() != o.getClass()) return false; + + final MeasureUnit that = (MeasureUnit) o; + return unit.equals(that.unit); + + } + + @Override + public int hashCode() { + return unit.hashCode(); + } + } }